Katy Perry will premiere 'Wide Awake' on Sunday's Billboard Music Awards.

+ Katy Perry has just been added to the star-studded lineup of performers slated for Sunday's "Billboard Music Awards." She will also perform "Wide Awake," a new track which was written for her forthcoming "Katy Perry: Part of Me" film. (Billboard)

+ It's Glambert Day, aka the day Adam Lambert releases Trespassing. Yesterday he stopped in at "VH1's Big Morning Buzz Live" to talk about a variety of topics, from working with Bruno Mars to gay marriage. Peep the interview. (Neon Limelight)

+ Jay-Z says he's going to take some time off from the studio for daddy duty with Blue Ivy, his daughter with Beyoncé. He told MTV News, "I just really wanna hang out with her. I just wanna enjoy those moments for a bit, and I'm sure that feeling of music will come back to me." (MTV News)

+ In addition to Jay-Z's family QT, he's set to headline and curate the Budweiser Made in America Festival in Philadelphia, Sept. 1-2. He also says he's going to ask President Obama to stop by: "He'll be so far into helping the world that he probably won't have time, but I'm absolutely going to ask him." (Rolling Stone)

+ Rihanna and Coldplay release another video teaser for "Princess of China." This time it comes by way of behind-the-scenes footage. Check it out. (Idolator)

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